HANNspree ST42DMSB Manuale utente

Proprietary & Confidential Page 1

Overview:

The purpose of this manual is to guide Nexicore technicians through the proper procedures for

proper replacement of all major components of the unit.

Table of Contents:

1. Stand Removal

2. Wall Mount Removal

3. Back Cover Removal

4. Power Supply Unit Replacement

5. Main Board Replacement

6. Keyboard Replacement

7. LED/IR Board Replacement

Required Tools:

Non-marking Pry Tool

Phillips Head Screwdriver

Anti-Static Wrist Strap

Kapton Tape or Electrical Tape

Hannspree (ST42DMSB) 42 inch LCD TV Service Manual

servicing the Hannspree 42 inch LCD televisions. Utilizing this manual will assist technicians with

Hannspree 42" LCD TV model number ST42DMSB

Ant-Static Mat

3/16" Nut Driver

Proprietary & Confidential Page 2

1. Stand Removal

•To ensure no damage to the front LCD Panel, gently place unit face down on padded

anti-static mat with the stand hanging over the edge of the work surface.

(Figure 1)

(Figure 2)

Hannspree 42 inch LCD Television Service Manual

•Remove the 6 screws that secure the stand to the unit.

Proprietary & Confidential Page 3

•Slide stand from unit by gently pulling it towards you.

(Figure 3)

Hannspree 42 inch LCD Television Service Manual

Proprietary & Confidential Page 4

2. Wall Mounting Bracket Removal

•To ensure no damage to the front LCD Panel, gently place unit face down on padded

anti-static mat.

•Remove the 4 screws that secure the wall mounting bracket (wall mounting bracket not

pictured here).

(Figure 4)

•Gently remove the bracket from the unit.

Hannspree 42 inch LCD Television Service Manual

Proprietary & Confidential Page 5

3. Back Cover Removal

•To ensure no damage to the front LCD Panel, gently place unit face down on padded

anti-static mat.

(Figure 5)

Hannspree 42 inch LCD Television Service Manual

•Remove the 10 screws from the perimeter of the back cover.

The screw located in the bottom right corner may be covered by a piece of tape.

Proprietary & Confidential Page 6

(Figure 6)

The keyboard is attached to the back cover on this model.

Caution: when removing the back cover you will need to unplug the keyboard.

•Next, remove the remaining 1 screw from the center of the input jack area.

•Remove the cable and carefully lift the back cover from the unit.

Proprietary & Confidential Page 7

4. Power Supply Unit Replacement

•Remove Back Cover.

(Figure 7)

Hannspree 42 inch LCD Television Service Manual

•Disconnect the3cables attached to the Power Supply Unit (PSU).

Proprietary & Confidential Page 8

•Figure 8 shows all cables removed from the PSU.

(Figure 8)

Hannspree42inch LCD Television Service Manual

Proprietary & Confidential Page 9

(Figure 9)

•Gently lift the PSU from the mount.

•To reinstall the PSU place unit on mount ensuring screw holes line up properly.

•Reconnect all cables.

Hannspree42inch LCD Television Service Manual

•Remove the 4screws securing the PSU board to the mount.

•Reinstall the 4screws.

Proprietary & Confidential Page 10

5.Main Board Replacement

•Remove Back Cover.

•Disconnect all cables from Main Board.

(Figure 10)

Hannspree42inch LCD Television Service Manual

TheLVDScablehassecuringtapeholdingitinplace.Youmustpeelthetapebacktoexpose

the connector, once exposed push in on the two black tabs and gently remove the LVDS cable

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